The evolution of the nanobubble from gas molecules in liquid phase is of fundamental interest. However, the lack of sensitive tools hinders the study of growth dynamic of the bubble at nanoscale. Here, we employed a confined glass nanopore to real-time monitor the dynamics behavior of a single nanobubble generated by the reaction between NaBH and HO. By analyzing the characteristic ionic current signal, the formation time and growth time of a single nanobubble could be estimated as 200 and 21 ms, respectively. Further, the nanopore size has been altered to modulate the growth behavior of the nanobubble. The results demonstrate the capability of the nanopore for sensitively tracking the behavior of single nanobubbles in liquid phase, which provides a powerful method for further understanding nanobubble evolution.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1021/acs.analchem.8b03923 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Scintillating Glass Fiber Arrays Enable Remote Radiation Detection and Pixelated Imaging.
Adv Mater
December 2024
State Key Laboratory of Luminescent Materials and Devices, School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510640, China.
The emerging metal halide perovskites are challenging the traditional scintillators in the field of radiation detection and radiography. However, they lack the capability for remote and real-time radiation monitoring and imaging in confined and hostile conditions. To address this issue, details on an inorganic scintillating glass fiber incorporating perovskite quantum dots (QDs) as highly efficient pixelated radiation emitters are reported, while the glass fibers themselves serve at the same time as low-loss waveguides, enabling long-distance and underwater X-ray detection.
View Article and Find Full Text PDFObservation of Boson Peak of Fragile Baltic Amber Glass by Terahertz Time-Domain Spectroscopy.
Materials (Basel)
December 2024
Department of Materials Science, University of Tsukuba, Tsukuba 305-8573, Ibaraki, Japan.
Amber is a fragile (in Angell's classification) natural glass that has performed maturation processes over geological time. The terahertz dynamics of Baltic amber that was about 40 million years old were studied by terahertz time-domain spectroscopy (THz-TDS) in the frequency range of 0.2 and 6.
View Article and Find Full Text PDFThermal Stability and Photostability of Highly Confined Molecular Nanocomposites.
J Phys Chem B
December 2024
Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States.
Article Synopsis
- * It finds that when the size of silica NPs decreases, both thermal degradation and photo-degradation rates of the molecular glasses also decrease significantly, enhancing their stability.
- * The research indicates that extreme nanoconfinement slows down reaction product transport, leading to improved durability, suggesting potential applications in coatings and organic electronics.
Nano-size Joule-Heating to Achieve Low-Ohmic Ag-Si Contact on Boron Emitters of n-TOPCon Solar Cells.
Small
December 2024
School of Advanced Materials, Shenzhen Graduate School, Peking University, Shenzhen, 518055, China.
Over the past decade, Tunnel Oxide Passivated Contact (TOPCon) solar cells have emerged as a leading technology for high-efficiency silicon solar cells. Conventional metallization processes using silver/aluminum (Ag/Al) pastes encounter significant hurdles due to reliability risks and insufficient contact quality. Recent advancements in laser-induced metallization technologies, particularly laser-enhanced contact optimization (LECO), offer promising solutions.
View Article and Find Full Text PDFEffect of Confinement on the Translational Diffusivity of Small Dye Molecules in Thin Polystyrene Films and Its Connection to -Confinement and Fragility-Confinement Effects.
J Phys Chem B
December 2024
Department of Materials Science, Engineering Northwestern University, Evanston, Illinois 60208, United States.
Using fluorescence, we study the impact of nanoscale confinement on the translational diffusivity () of trace levels of a small-molecule dye, 9,10-bis(phenylethynyl)anthracene (BPEA), in supported polystyrene (PS) films via Förster resonance energy transfer (FRET). Reductions in BPEA diffusivity are observed in films thinner than ∼200 nm, with decreasing by 80-90% in 100 nm-thick films compared to bulk. The activation energy of BPEA diffusivity increases from ∼210 kJ/mol in bulk films to ∼370 kJ/mol in 130 nm-thick films.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!